.container #main {
  min-height: 500px;
}
.content-wrap .banner {
  width: 100%;
  height: 170px;
  background: url("/web/img/about-bg-long.jpg") no-repeat center;
  background-size: auto 100%;
}
.content-wrap .content {
  width: 870px;
  margin: 70px auto 0;
  font-size: 14px;
  line-height: 30px;
}
